Persistent group of media items for a media device

ABSTRACT

Improved techniques to utilize and manage a group of media items (or media assets) on a computing device are disclosed. The group of media items can be utilized and managed at a host computer for the host computer as well as a media device (e.g., media player) that can couple to the host computer. One popular example of a group of media items is know as a playlist, which can pertain to a group of audio tracks. One aspect pertains to providing a persistent media device playlist at a host computer. Another aspect pertains to imposing capacity limits to a playlist, such as a media device playlist. Still another aspect pertains to a graphical user interface that enables a user to trade-off storage capacity of a media device between media asset storage and data storage. Yet still another aspect pertains to a graphical user interface that assists a user with selecting media items to fill a group of media items.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to U.S. Provisional Application No. 60/642,334, filed Jan. 7, 2005, and entitled “MEDIA MANAGEMENT FOR GROUPS OF MEDIA ITEMS,” which is hereby incorporated herein by reference.

This application is related to: (i) U.S. application Ser. No. ______ [Att.Dkt.No.: APL1 P370/P3695], filed concurrently, and entitled “MEDIA MANAGEMENT FOR GROUPS OF MEDIA ITEMS,” which is hereby incorporated herein by reference; (ii) U.S. application Ser. No. 10/973,925, filed Oct. 25, 2004, and entitled “MULTIPLE MEDIA TYPE SYNCHRONIZATION BETWEEN HOST COMPUTER AND MEDIA DEVICE,” which is hereby incorporated herein by reference; (iii) U.S. patent application Ser. No. 10/833,879, filed Apr. 27, 2004, and entitled “METHOD AND SYSTEM FOR SHARING PLAYLISTS,” which is hereby incorporated by reference herein; (iv) U.S. patent application Ser. No. 10/833,399, filed Apr. 27, 2004, and entitled “METHOD AND SYSTEM FOR CONFIGURABLE AUTOMATIC MEDIA SELECTION,” which is hereby incorporated by reference herein; (v) U.S. patent application Ser. No. 10/277,418, filed Oct. 21, 2002, and entitled “INTELLIGENT INTERACTION BETWEEN MEDIA PLAYER AND HOST COMPUTER,” which is hereby incorporated herein by reference; (vi) U.S. patent application Ser. No. 10/198,639, filed Jul. 16, 2002, and entitled “METHOD AND SYSTEM FOR UPDATING PLAYLISTS,” which is hereby incorporated by reference herein; and (vii) U.S. patent application Ser. No. 10/118,069, filed Apr. 5, 2002, and entitled “INTELLIGENT SYNCHRONIZATION OF MEDIA PLAYER WITH HOST COMPUTER,” which is hereby incorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to media devices and, more particularly, to management of media on media devices.

2. Description of the Related Art

A media player stores media assets, such as audio tracks or photos, that can be played or displayed on the media player. One example of a media player is the iPod® media player, which is available from Apple Computer, Inc. of Cupertino, Calif. Often, a media player acquires its media assets from a host computer that serves to enable a user to manage media assets. As an example, the host computer can execute a media management application to manage media assets. One example of a media management application is iTunes®, version 4.2, produced by Apple Computer, Inc.

Media assets can be moved between the host computer and the media player through use of a manual drag and drop operation, or through an automatic synchronization once a bus connection over a peripheral cable connects the media player to the host computer. Additional details on automatic synchronization are provided in U.S. Patent Publication No.: 2003/0167318 A1, which is hereby incorporated herein by reference.

In managing media assets, a user can create playlists for audio tracks. These playlists can be created at the host computer. Media assets within the playlists can then be copied to the media player. Often, the amount of media assets at the host computer exceeds the storage capacity of the media player. In such case, the user of the host computer can select a subset of the media assets at the host computer to be copied to the media player. For example, a user might select certain playlists to be copied to the media player when synchronized.

Conventionally, a media player is considered a media source for a media management application so long as the media player is connected to the host computer. That is, once the media management application detects the media player, a visual representation of the media player can be displayed. However, once the media player is disconnected, the visual representation of the media player is removed. Hence, media assets, namely, playlists of media assets, on the media player can be managed at the host computer only while the media player is connected to its host computer. In particular, if the media player is not connected to the host computer, then the media player is not a media source and, therefore, its media assets cannot be managed at the host computer. This can be a disadvantage for users that want to manage the media assets provided on the media player from the host computer.

Thus, there is a need for improved techniques to facilitate management and usage of media assets for media devices.

SUMMARY OF THE INVENTION

Broadly speaking, the invention pertains to improved techniques to utilize and manage a group of media items (or media assets) on a computing device. The group of media items can be utilized and managed at a host computer for the host computer as well as a media device (e.g., media player) that can couple to the host computer. One popular example of a group of media items is known as a playlist, which can pertain to a group of audio tracks.

One aspect of the invention pertains to providing a persistent media device playlist at a host computer. The persistent media device playlist represents a playlist dedicated to a media device that can couple to the host computer. Another aspect of the invention pertains to imposing capacity limits to a playlist, such as a media device playlist. Still another aspect of the invention pertains to a graphical user interface that enables a user to trade-off storage capacity of a media device between media asset storage and non-media asset storage. Yet still another aspect of the invention pertains to a graphical user interface that assists a user with selecting media items to fill a group of media items.

The invention can be implemented in numerous ways, including as a method, system, device, apparatus (including graphical user interface), or computer readable medium. Several embodiments of the invention are discussed below.

As a method of managing a media device playlist for use on a host computer and a media device, one embodiment of the invention includes at least the acts of: displaying a media device playlist indicator for the media device playlist on a display screen of the host computer; displaying a list of audio tracks that are within the media device playlist on the display screen when the media device playlist indicator is selected, the audio tracks being stored locally on the host computer; determining whether the media device is connected to the host computer; permitting a user of the host computer to add or remove audio tracks to or from the media device playlist, regardless of whether the media device is connected to the host computer; and updating audio tracks stored on the media device once the user has added or removed audio tracks to or from the media device playlist, provided that the media device is connected to the host computer.

As a method of managing a media device playlist for use on a host computer and a media device, another embodiment of the invention includes at least the acts of: displaying a media device playlist indicator for the media device playlist on a display screen of the host computer; displaying a representation of audio tracks that are within the media device playlist on the display screen, all of the audio tracks being stored locally on the host computer and at least a portion of the audio tracks being stored on the media device; and managing the audio tracks within the media device playlist by adding or removing audio tracks to or from the media device playlist.

As a computer readable medium including at least computer program code for managing a media device media grouping for use on a host computer and a media device, one embodiment of the invention includes at least: computer program code for displaying a media device media grouping indicator for the media device media grouping on a display screen of the host computer; computer program code for displaying a list of media items that are within the media device media grouping on the display screen when the media device media grouping indicator is selected, the media items being stored locally on the host computer; computer program code for determining whether the media device is connected to the host computer; computer program code for permitting a user of the host computer to add or remove media items to or from the media device media grouping, regardless of whether the media device is connected to the host computer; and computer program code for updating media items stored on the media device once the user has added or removed media items to or from the media device media grouping, provided that the media device is connected to the host computer.

As a computer readable medium including at least computer program code for managing a media item grouping for use on a host computer and a media device, another embodiment of the invention includes at least: computer program code for displaying a media-item grouping indicator for the media item grouping on a display screen of the host computer; computer program code for displaying a representation of media items that are within the media item grouping on the display screen, all of the media items being stored locally on the host computer and at least a portion of the media items being stored on the media device; and computer program code for managing the media items within the media item grouping by adding or removing media items to or from the media item grouping, wherein the media item grouping is dedicated to the media device.

Other aspects and advantages of the invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings which illustrate, by way of example, the principles of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be readily understood by the following detailed description in conjunction with the accompanying drawings, wherein like reference numerals designate like structural elements, and in which:

FIG. 1 is a flow diagram of a host-based media source management process according to one embodiment of the invention.

FIG. 2 is a flow diagram of a playlist management process according to one embodiment of the invention.

FIG. 3 is a flow diagram of a status indication process according to one embodiment of the invention.

FIG. 4 is a flow diagram of an update process according to one embodiment of the invention.

FIG. 5 is a screen shot of a media management application window according to one embodiment of the invention.

FIG. 6 is a screen shot of a preference window for a media management application according to one embodiment of the invention.

FIG. 7 if a flow diagram of a group fill process according to one embodiment of the invention.

FIGS. 8A and 8B are flow diagrams of a playlist fill process according to one embodiment of the invention.

FIG. 9 is a block diagram of a media management system according to one embodiment of the invention.

FIG. 10 is a block diagram of a media player according to one embodiment of the invention.

DETAILED DESCRIPTION OF THE INVENTION

The invention pertains to improved techniques to utilize and manage a group of media items (or media assets) on a computing device. The group of media items can be utilized and managed at a host computer for the host computer as well as a media device (e.g., media player) that can couple to the host computer. One popular example of a group of media items is known as a playlist, which can pertain to a group of audio tracks.

One aspect of the invention pertains to providing a persistent media device playlist at a host computer. The persistent media device playlist represents a playlist dedicated to a media device that can couple to the host computer. Another aspect of the invention pertains to imposing capacity limits to a playlist, such as a media device playlist. Still another aspect of the invention pertains to a graphical user interface that enables a user to trade-off storage capacity of a media device between media asset storage and non-media asset storage. Yet still another aspect of the invention pertains to a graphical user interface that assists a user with selecting media items to fill a group of media items.

Embodiments of the invention are discussed below with reference to FIGS. 1-10. However, those skilled in the art will readily appreciate that the detailed description given herein with respect to these figures is for explanatory purposes as the invention extends beyond these limited embodiments.

FIG. 1 is a flow diagram of a host-based media source management process 100 according to one embodiment of the invention. Typically, the host-based media source management process 100 is performed by a host computer for the benefit of not only the host computer but also a media device. Often, the host-based media source management process 100 operates following a request by a user of the host computer.

The host-based media source management process 100 initially displays 102 a media source indicator for a media source that is associated with a media device. Then, a representation of media items that are within the media source are displayed 104. The media items within the media source can then be managed 106 by adding or removing media items to or from the media source. Following the block 106, the host-based media source management process 100 is complete and ends.

In one embodiment, the media source pertains to a media device playlist. A media device playlist is a playlist that is dedicated to a particular media device. That is, the media items present on the media device should closely correspond to the media items in the media device playlist. Typically, a host computer can manage the media device playlist for both the host computer and the media device. The media items can pertain to one or more different types of media content. In one embodiment, the media items are audio tracks. In another embodiment, the media items are images (e.g., photos). However, in other embodiments, the media items can be any combination of audio, graphical or video content.

A playlist identifies particular media items that are to be played in a sequence. In general, a playlist can be considered an ordered list of media items. Internally, according to one embodiment, the playlist can be represented in a media database as a data structure that points to files of the appropriate media items residing on the storage device within the media device. Hence, for a given playlist, the pointers to the files of the appropriate media items on the media device will differ from the pointers to the files for the same media items on the host computer, thus the need to update the pointers if a particular playlist is moved between the host computer and the media device.

FIG. 2 is a flow diagram of a playlist management process 200 according to one embodiment of the invention. The playlist management process 200 is, for example, performed by a host computer, such as a host computer performing a media management application. The playlist management process 200 serves to manage media not only on the host computer but also on a portable media device that can connect to the host computer.

The playlist management process 200 initially displays 202 a media device playlist indicator. A decision 204 then determines whether the playlist indicator has been selected. Here, a user of the host computer can cause the playlist indicator to be selected. When the decision 204 determines that the playlist indicator has not yet been selected, then other processing 206 can optionally be performed. Following the other processing 206, if any, the playlist management process 200 returns to repeat the decision 204 and subsequent blocks.

On the other hand, when the decision 204 determines that the playlist indicator has been selected, then a list of audio tracks that are within the media device playlist are displayed 208. After the list of audio tracks is displayed 208, the user of the host computer can interact with the list of audio tracks to either add or delete audio tracks from the media device playlist. In this regard, a decision 210 determines whether user interaction has requested to add or delete audio tracks to or from the media device playlist. When the decision 210 determines that no such user interaction has been requested, other processing 212 can optionally be performed. Following the other processing 212, if any, the playlist management process 200 returns to repeat the decision 210 and subsequent blocks. Once the decision 210 determines that user interaction has requested to add or delete audio tracks with respect to the media device playlist, then the media device playlist is updated 214. Then, the updated list of audio tracks that are within the media device playlist are displayed 216.

Next, a decision 218 then determines whether an associated media device is connected to the host computer. When the decision 218 determines that the media device is connected to the host computer, then audio tracks to be stored on the media device are updated 220. In other words, the additions and/or deletions of audio tracks can be performed to affect update of the audio tracks stored at the media device. On the other hand, when the decision 218 determines that the associated media device is not connected to the host computer, update of audio tracks to be stored on the media device is deferred 222. In other words, if the associated media device is “off-line” with respect to the host computer, the update to the audio tracks stored on the media device is deferred until a later point in time when the media device is “on-line” with respect to the host computer. For example, the update of the audio tracks stored on the media device can be deferred 222 until the media device is next connected to the host computer. Following the blocks 220 and 222, a decision 224 determines whether the media device playlist is unselected. When the media device playlist is unselected, the playlist management process 200 for the media device playlist ends. On the other hand, when the decision 224 determines that the media device playlist remains selected, the playlist management process 200 can return to repeat the decision 210 and subsequent operations so that management of the media device playlist can continue.

FIG. 3 is a flow diagram of a status indication process 300 according to one embodiment of the invention. The status indication processed 300 represents additional processing that can be performed to provide status indication information for each of the audio tracks being listed in a media device playlist. The status indication process 300 is, for example, performed at block 208 of the playlist management process 200 illustrated in FIG. 2.

The status indication process 300 initially obtains 302 the audio tracks that are within the media device playlist. Then, the status indication process 300 determines 304 which of the audio tracks are present on the media device. The audio tracks can then be displayed 306 in a list on a display screen of the host computer. Additionally, an indicator for each of the audio tracks can be displayed 308 to indicate its presence on the media device. Following the block 308, the status indication processed 300 ends.

Often, all the audio tracks in the list being displayed 306 are also present in the media device. However, in various circumstances, one or more audio tracks are not present on the media device. As an example, if the media were disconnected before it could receive be updated with additional audio tracks, then the indicator displayed 308 at the host computer would indicate that such additional audio tracks are not present on the media device. As another example, if one audio track were added to the media device playlist at the host computer, but such audio track was not permitted to be copied elsewhere, then the indicator displayed 308 at the host computer would again indicate that such audio track was not present on the media device.

FIG. 4 is a flow diagram of an update process 400 according to one embodiment of the invention. The update process 400 is performed by a host computer which serves to update the media device playlist stored on media device. The update process 400 represents one embodiment for the update 214 of the media device playlist discussed above with reference to FIG. 2.

The update process 400 begins with a decision 402 that determines whether one or more audio tracks are to be deleted from the media device playlist. When the decision 402 determines that one or more audio tracks are to be deleted from the media device playlist, then the media device playlist is updated 404 by deleting the one or more audio tracks. Following the block 404, or directly following the decision 402 when the decision 402 to determines that one or more audio tracks are not to be deleted, a decision 406 determines whether one or more audio tracks are to be added to the media device playlist. When the decision 406 determines that one or more audio tracks are to be added to the media device playlist, then a capacity limit for the media device playlist is determined 408. The capacity limit for the media device playlist can be established in a variety of different ways. In one embodiment, the capacity limit for the media device playlist is determined by the storage capacity of the media device. In another embodiment, the capacity limit for the media device playlist can be set by a user of the host computer, such as via a media management application operating on the host computer.

In any case, after the capacity limit for the media device playlist has been determined 408, a decision 410 determines whether the capacity limit would be exceeded if the one or more audio tracks are added to the media device playlist. When the decision 410 determines that the capacity limit would not be exceeded if the one or more audio tracks were added to the media device playlist, then the media device playlist can be updated 412 by adding the one or more audio tracks. Alternatively, when the decision 410 determines that the capacity limit for the media device playlist would be exceeded if the one or more audio tracks were added to the media device playlist, then the user can be informed 414 that insufficient space prevented adding of the one or more audio tracks to the media device playlist. Following the blocks 412 and 414, as well as following the decision 406 when no audio tracks are to be added, the update process 400 ends.

In another embodiment, the update process 400 can operate differently when the decision 410 determines that the capacity limit for the media device playlist would be exceeded if the one or more audio tracks were added to the media device playlist. For example, instead of merely informing 414 the user that insufficient space prevented adding of the one or more audio tracks to the media device playlist, the update process 400 could permit the additions at the host computer following the informing 414 which would provide a warning. However, in such an embodiment, the subsequent update 220 of the media device would not operate to copy excess media items to the media device. Status indicators, such as described above with reference to FIG. 3, could be used to designate the excess media items at the host computer's version of the media device playlist but not on the media device itself.

FIG. 5 is a screen shot of a media management application window 500 according to one embodiment of the invention. The media management application window 500 is, for example, produced by a media management application operating on a host computer.

The media management application window 500 includes a source region 502 and a track listing area 504. The source region 502, among other things, depicts a media device indicator 506. The media device indicator 506 corresponds to a media device playlist. In this example, the media device indicator 506 is a graphic icon. Additionally, the media device indicator 506 can also include a text description. In this example, the media device indicator 506 also provides the text “iPod”. The track listing area 504 includes a list of audio tracks 508 together with associated status indicators 510 and 511. The list of audio tracks 508 are those audio tracks associated with the media device playlist. As shown in FIG. 5, each of the audio tracks within the list of audio tracks 508 include a corresponding one of the status indicators 510. In this example, the status indicators 510 are all shown being “checked,” thus indicating that the associated audio tracks are to be played when playing through the audio tracks within the list of audio tracks 508. Alternatively, with the status indicator 510 “unchecked” the associated audio track is skipped (i.e., not played) played when playing through the audio tracks within the list of audio tracks 508. Further, each of the audio tracks within the list of audio tracks 508 can also include a corresponding one of the status indicators 511. In this example, the status indicator 511 is being display adjacent to only the audio tracks 9, 10 and 11 of the list of audio tracks 508. The status indicator 511 in this example indicates that the corresponding audio track has not yet been copied to the associated media device. Typically, the media management application will copy all of the audio tracks within the list of audio tracks 508 to the media device once the media device connects to the host computer. However, in the event that certain ones of the audio tracks within the list of audio tracks 508 are not currently present on the media device, the status indicator 511 associated with the certain ones of the audio tracks would be displayed.

The track listing area 504 also presents certain information pertaining to each of the audio tracks. As shown in FIG. 5, the certain information can pertain to song name 514, duration of time of the audio track 514, artist name 516, and album name 518. Additionally, the track listing area 504 also includes “go to” links 520 and 522 for each of the audio tracks. Each of the “go to” links 520 direct the user to an album page for an album including the associated audio track (song). Each of the “go to” links 522 directs the user to an artist page associated with the artist identified by the artist name 516. As shown in FIG. 5, the “go to” links can be implemented as small buttons with arrow symbols therein.

Furthermore, as discussed below, the media management application window 500 further includes a fill control region 540. The fill control region 540 includes an Autofill button 542 that can be selected by a user. Additionally, the fill control region 540 provides graphical user interface control items that can be selected or manipulated by the user to affect the nature of an autofill operation once the Autofill button 542 is pressed. Namely, the fill control region 540 includes a source selector 544 so that a source of media from which the autofill operation is to be performed can be selected. In addition, the fill control region 540 includes selectors 546-550 that enable the user to select certain features. For example, the selector 546 allows a user to determine whether existing songs are to be replaced when autofilling the media device playlist. The selector 548 determines whether songs are to be randomly chosen when performing the autofill operation. The selector 550 determines whether higher-rated songs (e.g., user ratings) are to be chosen when performing the autofill operation. Still further, the fill control region 540 can display an indication 552 of an amount of available storage capacity for the media device.

In general, the autofill region 540 assists a user in providing criteria for media selection when autofilling. Although the fill control region 540 includes the selectors 548 and 550, different or additional selectors or other types of controls can be utilized. These additional controls can also be used to specify criteria for selecting audio tracks (i.e., songs) when autofilling the media device playlist. Some examples of these additional selectors or controls are associated with criteria such as: artist, album, composer, bit rate, date added (e.g., recently added), genre, play count, name, year, etc. A user can also define the rules or conditions for determining audio tracks to be selected when autofilling. The rules or conditions can include rule components, such as: contains, does not contain, is, is not, starts with, ends with, in the range, etc. Besides criteria controls and rules, importance selectors (e.g., sliders) or other controls permit a user to further control how the audio tracks are selected when autofilling. For example, a criteria selection based on user ratings as well as an importance value from an importance selector (e.g., slider) can be set to influence which audio tracks are to be selected from a source of media. However, the particular order in which such audio tracks are acquired can still be is partially randomly determined or can be determined based on the criteria (date added) or rules.

FIG. 6 is a screen shot of a preference window 602 for a media management application according to one embodiment of the invention. In this embodiment, the media management application is able to set preferences that determine how a media device operates to store data. Namely, in this example, the media device is known as the iPod® media player, which is available from Apple Computer, Inc. Here, the preference window 602 includes a selector 604 that enables the user to determine whether the media device is permitted to be used as a portable disk drive for data storage. Here, the data storage when being used as a portable storage disk would be distinct from storage of media content, such as media content of a media device playlist.

The preference window 602 also includes a graphical user interface control 606 that assists the user in specifying how much of the available storage capacity of the media device should be used for data as well as how much of the storage capacity should be used for media items, such as audio tracks or songs. In one embodiment, the graphical user interface control 606 is a slider such as shown in FIG. 6. The slider shown in FIG. 6 can be manipulated by the user to trade-off the number of media items (e.g., 27 songs) that can be stored to the media device with the amount of other data (e.g., 151 MB) that can be stored. As a slider reference 608 is manipulated by the user along a slider bar 610, the number of songs and the amount of data change. For example, if the user were to move the slider reference 608 to the left as shown in FIG. 6, the number of songs depicted would increase to a value greater than 27, while the amount of other data would decrease below 151 MB. For ease of computation, in one embodiment, each song can be considered 1 MB or some other predetermined representative size. Stated differently, the slider shown in FIG. 6 can be manipulated by the user to trade-off the amount of media item storage available on the media device with the amount of non-media item storage available on the media device.

FIG. 7 if a flow diagram of a group fill process 700 according to one embodiment of the invention. The group fill processed 700 is, for example, performed by a host computer that operates a media management application that is able to allow users to group media items.

The group fill process 700 initially displays 702 a group of media items. Next, a decision 704 determines whether a fill request has been received. When the decision 704 determines that a fill request has not been received, then other processing 706 can be optionally performed. In any case, the group fill process 700 returns to repeat the decision 704 to await a fill request.

Once the decision 704 determines that a fill request has been received, a capacity limit for the group is obtained 708. The capacity limit for the group can be stored on the host computer in one embodiment of the invention. In another embodiment, the capacity limit can be determined at the host computer. In still another embodiment, the capacity limit for the group can be determined based on information provided by a media device coupled to the host computer. In any event, after the capacity limit for the group has been obtained 708, the group fill process 700 operates to automatically fill 710 the group to the capacity limit with additional media items. At this point, the group of media items is deemed full of media items. It should be understood that “filling” the group of media items or consuming the capacity limit does not require that there be no remaining free capacity. For example, in one implementation, the automatic fill 710 can fill the group with as many complete media items as it can hold. In any case, following the automatic fill 710, the group can be re-displayed 712. Following the re-display 712 of the group, the group fill process 700 is complete. Although the group fill process 700 could end following the re-display 712 of the group, the group fill process 700 can also return to repeat the decision 704 and subsequent operations so that the group fill process can again performed (with or without any intermediate other processing).

One example of a group media items is a playlist. The media items within the playlist are, for example, audio tracks.

FIGS. 8A and 8B are flow diagrams of a playlist fill process 800 according to one embodiment of the invention. The playlist fill process 800 initially displays 802 a playlist having initial audio tracks. Next, a decision 804 determines whether a fill request has been received. Here, the fill request is typically from a user of a host computer that operates the playlist fill process 800. When the decision 804 determines that a fill request has not yet been received, other processing 806 can optionally be performed. Following the other processing 806, if any, the playlist fill process 800 returns to repeat the decision 804 and subsequent blocks.

Once the decision 804 determines that a fill request has been received, a decision 808 determines whether the initial audio tracks of the playlist are to be replaced. When the decision 808 determines that the initial audio tracks are to be replaced, the initial audio tracks are deleted 810 from the playlist. Alternatively, when the decision 808 determines that the initial audio tracks are not to be replaced, then the block 810 is bypassed.

Following the block 810, or its being bypassed, a source selection is obtained 812. The source selection represents a source for additional media items that can be added to the playlist. In addition, selection criteria preferences can be obtained 814. In one embodiment, the selection criteria preferences are preferences, typically set by the user, that specify criteria to be utilized in the selection of the additional media items to fill the playlist. Still further, a capacity limit for the playlist can be obtained 816. As noted above, the capacity limit can be influenced by user settings and/or media device capacities.

Next, an amount of free capacity for the playlist is determined 818. In one embodiment, the free capacity for the playlist represents in the difference between the current capacity for the playlist and the capacity limit for the playlist. Once the amount of free capacity has been determined 818, additional audio tracks to fill the free capacity of the playlist are determined 820 based on the source selection and the selection criteria preferences. Then, the additional audio tracks that have been determined 820 are added 822 to the playlist. Finally, the playlist can be re-displayed 824. Once re-displayed, the playlist is illustrated with a full complement of audio tracks.

Following the block 824, the playlist fill process 800 is complete and ends. However, it should be realized that the playlist fill process 800 can be repeated, if desired, so as to obtain different selections of audio tracks within the playlist, provided the source selection has an adequate quantity of audio tracks to be chosen from and provided at least some of the initial audio tracks are being replaced.

In another embodiment, the replacement (i.e., deletion 810) of initial tracks can be limited to those of the initial audio tracks that have been played since last updated with a host computer. In still another embodiment, the user of the host computer can manually delete one or more of the initial audio tracks from the playlist.

FIG. 9 is a block diagram of a media management system 900 according to one embodiment of the invention. The media management system 900 includes a host computer 902 and a media player 904. The host computer 902 is typically a personal computer. The host computer, among other conventional components, includes a management module 906 which is a software module. The management module 906 provides for centralized management of media items (and/or playlists) not only on the host computer 902 but also on the media player 904. More particularly, the management module 906 manages those media items stored in a media store 908 associated with the host computer 902. The management module 906 also interacts with a media database 910 to store media information associated with the media items stored in the media store 908.

The media information pertains to characteristics or attributes of the media items. For example, in the case of audio or audiovisual media, the media information can include one or more of: title, album, track, artist, composer and genre. These types of media information are specific to particular media items. In addition, the media information can pertain to quality characteristics of the media items. Examples of quality characteristics of media items can include one or more of: bit rate, sample rate, equalizer setting, volume adjustment, start/stop and total time.

Still further, the host computer 902 includes a play module 912. The play module 912 is a software module that can be utilized to play certain media items stored in the media store 908. The play module 912 can also display (on a display screen) or otherwise utilize media information from the media database 910. Typically, the media information of interest corresponds to the media items to be played by the play module 912.

The host computer 902 also includes a communication module 914 that couples to a corresponding communication module 916 within the media player 904. A connection or link 918 removeably couples the communication modules 914 and 916. In one embodiment, the connection or link 918 is a cable that provides a data bus, such as a FIREWIRE™ bus or USB bus, which is well known in the art. In another embodiment, the connection or link 918 is a wireless channel or connection through a wireless network. Hence, depending on implementation, the communication modules 914 and 916 may communicate in a wired or wireless manner.

The media player 904 also includes a media store 920 that stores media items within the media player 904. Optionally, the media store 920 can also store data, i.e., non-media item storage. The media items being stored to the media store 920 are typically received over the connection or link 918 from the host computer 902. More particularly, the management module 906 sends all or certain of those media items residing on the media store 908 over the connection or link 918 to the media store 920 within the media player 904. Additionally, the corresponding media information for the media items that is also delivered to the media player 904 from the host computer 902 can be stored in a media database 922. In this regard, certain media information from the media database 910 within the host computer 902 can be sent to the media database 922 within the media player 904 over the connection or link 918. Still further, playlists identifying certain of the media items can also be sent by the management module 906 over the connection or link 918 to the media store 920 or the media database 922 within the media player 904.

Furthermore, the media player 904 includes a play module 924 that couples to the media store 920 and the media database 922. The play module 924 is a software module that can be utilized to play certain media items stored in the media store 920. The play module 924 can also display (on a display screen) or otherwise utilize media information from the media database 922. Typically, the media information of interest corresponds to the media items to be played by the play module 924.

Hence, in one embodiment, the media player 904 has limited or no capability to manage media items on the media player 904. However, the management module 906 within the host computer 902 can indirectly manage the media items residing on the media player 904. For example, to “add” a media item to the media player 904, the management module 906 serves to identify the media item to be added to the media player 904 from the media store 908 and then causes the identified media item to be delivered to the media player 904. As another example, to “delete” a media item from the media player 904, the management module 906 serves to identify the media item to be deleted from the media store 908 and then causes the identified media item to be deleted from the media player 904. As still another example, if changes (i.e., alterations) to characteristics of a media item were made at the host computer 902 using the management module 906, then such characteristics can also be carried over to the corresponding media item on the media player 904. In one implementation, the additions, deletions and/or changes occur in a batch-like process during synchronization of the media items on the media player 904 with the media items on the host computer 902.

In another embodiment, the media player 904 has limited or no capability to manage playlists on the media player 904. However, the management module 906 within the host computer 902 through management of the playlists residing on the host computer can indirectly manage the playlists residing on the media player 904. In this regard, additions, deletions or changes to playlists can be performed on the host computer 902 and then by carried over to the media player 904 when delivered thereto.

As previously noted, synchronization is a form of media management. The ability to automatically initiate synchronization was also previously discussed above and in the related application noted above. Still further, however, the synchronization between devices can be restricted so as to prevent automatic synchronization when the host computer and media player do not recognize one another.

According to one embodiment, when a media player is first connected to a host computer (or even more generally when matching identifiers are not present), the user of the media player is queried as to whether the user desires to affiliate, assign or lock the media player to the host computer. When the user of the media player elects to affiliate, assign or lock the media player with the host computer, then a pseudo-random identifier is obtained and stored in either the media database or a file within both the host computer and the media player. In one implementation, the identifier is an identifier associated with (e.g., known or generated by) the host computer or its management module and such identifier is sent to and stored in the media player. In another implementation, the identifier is associated with (e.g., known or generated by) the media player and is sent to and stored in a file or media database of the host computer.

FIG. 10 is a block diagram of a media player 1000 according to one embodiment of the invention. The media player 1000 includes a processor 1002 that pertains to a microprocessor or controller for controlling the overall operation of the media player 1000. The media player 1000 stores media data pertaining to media items in a file system 1004 and a cache 1006. The file system 1004 is, typically, a storage disk or a plurality of disks. The file system 1004 typically provides high capacity storage capability for the media player 1000. The file system 1004 can store not only media data but also non-media data (e.g., when operated in a disk mode). However, since the access time to the file system 1004 is relatively slow, the media player 1000 can also include a cache 1006. The cache 1006 is, for example, Random-Access Memory (RAM) provided by semiconductor memory. The relative access time to the cache 1006 is substantially shorter than for the file system 1004. However, the cache 1006 does not have the large storage capacity of the file system 1004. Further, the file system 1004, when active, consumes more power than does the cache 1006. The power consumption is often a concern when the media player 1000 is a portable media player that is powered by a battery (not shown). The media player 1000 also includes a RAM 1020 and a Read-Only Memory (ROM) 1022. The ROM 1022 can store programs, utilities or processes to be executed in a non-volatile manner. The RAM 1020 provides volatile data storage, such as for the cache 1006.

The media player 1000 also includes a user input device 1008 that allows a user of the media player 1000 to interact with the media player 1000. For example, the user input device 1008 can take a variety of forms, such as a button, keypad, dial, etc. Still further, the media player 1000 includes a display 1010 (screen display) that can be controlled by the processor 1002 to display information to the user. A data bus 1011 can facilitate data transfer between at least the file system 1004, the cache 1006, the processor 1002, and the CODEC 1012.

In one embodiment, the media player 1000 serves to store a plurality of media items (e.g., songs) in the file system 1004. When a user desires to have the media player play a particular media item, a list of available media items is displayed on the display 1010. Then, using the user input device 1008, a user can select one of the available media items. The processor 1002, upon receiving a selection of a particular media item, supplies the media data (e.g., audio file) for the particular media item to a coder/decoder (CODEC) 1012. The CODEC 1012 then produces analog output signals for a speaker 1014. The speaker 1014 can be a speaker internal to the media player 1000 or external to the media player 1000. For example, headphones or earphones that connect to the media player 1000 would be considered an external speaker.

The media player 1000 also includes a network/bus interface 1016 that couples to a data link 1018. The data link 1018 allows the media player 1000 to couple to a host computer. The data link 1018 can be provided over a wired connection or a wireless connection. In the case of a wireless connection, the network/bus interface 1016 can include a wireless transceiver.

In one implementation, the host computer can utilize an application resident on the host computer to permit utilization and provide management for playlists, including a media device playlist. One such application is iTunes®, version 4.2, produced by Apple Computer, Inc. of Cupertino, Calif.

Although the media items (or media assets) of emphasis in several of the above embodiments were audio items (e.g., audio files or songs), the media items are not limited to audio items. For example, the media items can alternatively pertain to videos (e.g., movies) or images (e.g., photos).

The various aspects, embodiments, implementations or features of the invention can be used separately or in any combination.

The invention is preferably implemented by software, but can also be implemented in hardware or a combination of hardware and software. The invention can also be embodied as computer readable code on a computer readable medium. The computer readable medium is any data storage device that can store data which can thereafter be read by a computer system. Examples of the computer readable medium include read-only memory, random-access memory, CD-ROMs, DVDs, magnetic tape, optical data storage devices, and carrier waves. The computer readable medium can also be distributed over network-coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

The advantages of the invention are numerous. Different aspects, embodiments or implementations may yield one or more of the following advantages. One advantage of the invention is that a media device playlist can be persistently represented and manipulated at a host computer regardless of whether the associated media device is connected to the host computer. Another advantage of the invention is that a playlist can be managed in accordance with a capacity limit. Still another advantage of the invention is that a capacity limit to be imposed on a playlist can be adjusted to provide reserved storage capacity for data storage (e.g., associated with a disk mode usage of the media device). Yet still another advantage of the invention is that a user can initiate a fill operation to cause a playlist to be automatically filled from a larger media source.

The many features and advantages of the present invention are apparent from the written description and, thus, it is intended by the appended claims to cover all such features and advantages of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, the invention should not be limited to the exact construction and operation as illustrated and described. Hence, all suitable modifications and equivalents may be resorted to as falling within the scope of the invention. 

1. A method of managing a media device playlist for use on a host computer and a media device, said method comprising: (a) displaying a media device playlist indicator for the media device playlist on a display screen of the host computer; (b) displaying a list of audio tracks that are within the media device playlist on the display screen when the media device playlist indicator is selected, the audio tracks being stored locally on the host computer; (c) determining whether the media device is connected to the host computer; (d) permitting a user of the host computer to add or remove audio tracks to or from the media device playlist, regardless of whether the media device is connected to the host computer; and (e) updating audio tracks stored on the media device once the user has added or removed audio tracks to or from the media device playlist, provided that the media device is connected to the host computer.
 2. A method as recited in claim 1, wherein said updating (e) comprises deferring said updating (e) until the media device is next connected to the host computer.
 3. A method as recited in claim 1, wherein the media device playlist indicator is a graphic that provides a depiction of a media device.
 4. A method as recited in claim 3, wherein the graphic is an icon.
 5. A method as recited in claim 3, wherein the media device playlist indicator is displayed in a media source region of a program window presented by a media management application.
 6. A method as recited in claim 1, wherein said permitting (d) of the user of the host computer to add or remove audio tracks to or from the media device playlist is limited by a capacity limit.
 7. A method as recited in claim 6, wherein the capacity limit corresponds to a storage capacity of the media device.
 8. A method as recited in claim 6, wherein the capacity limit corresponds to a storage capacity associated with the media device playlist.
 9. A method as recited in claim 6, wherein the capacity limit is set to an audio capacity limit which is less than a storage capacity of the media device so that reserve capacity of the media device remains available for storage of non-audio data.
 10. A method as recited in claim 9, wherein the user of the host computer can set the capacity limit.
 11. A method as recited in claim 10, wherein the user of the host computer can set the capacity limit using a graphical user interface control.
 12. A method as recited in claim 11, wherein the graphical user interface control is a slider control.
 13. A method as recited in claim 1, wherein said displaying (b) further displays an indicator proximate to each of the audio tracks to thereby visually indicate whether the audio tracks are stored on the media device.
 14. A method of managing a media device playlist for use on a host computer and a media device, said method comprising: (a) displaying a media device playlist indicator for the media device playlist on a display screen of the host computer; (b) displaying a representation of audio tracks that are within the media device playlist on the display screen, all of the audio tracks being stored locally on the host computer and at least a portion of the audio tracks being stored on the media device; and (c) managing the audio tracks within the media device playlist by adding or removing audio tracks to or from the media device playlist.
 15. A method as recited in claim 14, wherein said method further comprises: (d) maintaining the audio tracks within the media device playlist consistent between those stored locally on the host computer and those stored on the media device while the media device is connected to the host computer.
 16. A method as recited in claim 15, wherein the media device playlist indicator is a graphic that provides a depiction of a media device.
 17. A method as recited in claim 16, wherein the graphic is an icon.
 18. A method as recited in claim 15, wherein the media device playlist indicator is displayed in a media source region of a program window presented by a media management application.
 19. A method as recited in claim 14, wherein said managing (c) is limited by a capacity limit.
 20. A method as recited in claim 19, wherein the capacity limit corresponds to a storage capacity associated with the media device playlist.
 21. A method as recited in claim 19, wherein the capacity limit corresponds to a storage capacity of the media device.
 22. A method as recited in claim 19, wherein the capacity limit is set to a media capacity limit which is less than a storage capacity of the media device so that reserve capacity of the media device remains available for storage of non-media data.
 23. A method as recited in claim 19, wherein the user of the host computer can set the capacity limit.
 24. A method as recited in claim 23, wherein the user of the host computer can set the capacity limit using a graphical user interface control.
 25. A method as recited in claim 24, wherein the graphical user interface control is a slider control.
 26. A method as recited in claim 14, wherein said displaying (b) further displays an indicator proximate to each of the audio tracks to thereby visually indicate whether the audio tracks are stored on the media device.
 27. A computer readable medium including at least computer program code for managing a media device media grouping for use on a host computer and a media device, said computer readable medium comprising: computer program code for displaying a media device media grouping indicator for the media device media grouping on a display screen of the host computer; computer program code for displaying a list of media items that are within the media device media grouping on the display screen when the media device media grouping indicator is selected, the media items being stored locally on the host computer; computer program code for determining whether the media device is connected to the host computer; computer program code for permitting a user of the host computer to add or remove media items to or from the media device media grouping, regardless of whether the media device is connected to the host computer; and computer program code for updating media items stored on the media device once the user has added or removed media items to or from the media device media grouping, provided that the media device is connected to the host computer.
 28. A computer readable medium including at least computer program code for managing a media item grouping for use on a host computer and a media device, said computer readable medium comprising: computer program code for displaying a media item grouping indicator for the media item grouping on a display screen of the host computer; computer program code for displaying a representation of media items that are within the media item grouping on the display screen, all of the media items being stored locally on the host computer and at least a portion of the media items being stored on the media device; and computer program code for managing the media items within the media item grouping by adding or removing media items to or from the media item grouping, wherein the media item grouping is dedicated to the media device. 